:root{--bg:#f5f7fa;--bg-2:#e9eef4;--surface:#ffffff;--text:#18222d;--muted:#64717e;--border:#d7e0e8;--accent:#1b7250;--accent-2:#183b2c;--accent-soft:#def5e9;--header-bg:#ffffff;--header-text:#19232f;--footer-bg:#14211a;--footer-text:#ffffff;--container:1180px;--hero-bg:#fbfcfe;}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.65}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input,summary{font:inherit}
.container{width:min(100% - 32px,var(--container));margin:0 auto}
.skip-link{position:absolute;left:-999px;top:8px;z-index:2000;padding:10px 14px;background:#fff;color:#111;border-radius:10px}
.skip-link:focus{left:16px}
.site-header{position:sticky;top:0;z-index:100;background:var(--header-bg);color:var(--header-text);border-bottom:1px solid rgba(255,255,255,.08)}
.header-inner{min-height:78px;display:flex;align-items:center;gap:18px}
.brand-logo,.footer-logo{width:138px;height:auto}
.site-nav{display:flex;align-items:center;justify-content:center;gap:18px;font-size:14px;flex:1}
.site-nav a{opacity:.88}.site-nav a:hover,.site-nav a:focus-visible{opacity:1}
.header-cta,.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 18px;border-radius:14px;border:1px solid transparent;font-weight:700;white-space:nowrap}
.header-cta,.btn-primary{background:var(--accent);color:#09311f}
.btn-secondary{background:transparent;border-color:var(--border);color:var(--text)}
.menu-toggle{display:none;width:44px;height:44px;border:1px solid rgba(255,255,255,.16);border-radius:12px;background:transparent;color:inherit;cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:4px}
.menu-toggle span{width:18px;height:2px;background:currentColor;border-radius:99px}
.hero{padding:68px 0 36px;background:linear-gradient(180deg,var(--hero-bg),var(--bg));overflow:hidden}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(300px,.95fr);gap:22px;align-items:center}
.hero-copy h1{margin:0;line-height:1.08;font-size:clamp(30px,4.2vw,54px);letter-spacing:-.03em;max-width:12ch;word-break:keep-all;overflow-wrap:normal}
.lead{margin:16px 0 0;color:var(--muted);font-size:clamp(16px,1.35vw,18px);max-width:66ch}
.hero-actions,.cta-actions,.chip-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.chip{display:inline-flex;align-items:center;min-height:34px;padding:0 12px;border-radius:999px;background:var(--surface);border:1px solid var(--border);color:var(--muted);font-size:13px}
.hero-visual,.mini-panel,.section .card,.device-card,.platform-card,.desktop-card,.apk-entry-panel,.apk-entry-note,.version-card,.version-aside,.apple-device-box,.apple-note,.compat-card,.path-panel,.compare-table,.desktop-window,.hub-visual,.app-preview-card,.phone-frame,.apk-card{background:var(--surface);border:1px solid var(--border);border-radius:22px;box-shadow:0 14px 32px rgba(0,0,0,.08)}
.hero-visual{padding:18px}
.hero-hub .hero-grid{grid-template-columns:minmax(0,1.05fr) minmax(300px,.95fr)}
.hub-visual{padding:18px;background:linear-gradient(180deg,#fff,#edf5ef);display:grid;gap:14px}
.hub-top img{border-radius:18px}
.hub-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}
.hub-strip span,.phone-tags span,.apple-device-chooser span,.apk-checklist span{display:inline-flex;align-items:center;justify-content:center;min-height:34px;border-radius:999px;background:var(--accent-soft);border:1px solid transparent;color:var(--accent-2);font-weight:700}
.trust-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.trust-pill{padding:18px;border:1px solid var(--border);border-radius:18px;background:#fff;display:grid;gap:6px}
.desktop-combined{display:grid;gap:16px}
.desktop-steps{padding:18px;border:1px solid var(--border);border-radius:22px;background:#fff}
.hero-app .hero-grid,.hero-android .hero-grid,.hero-ios .hero-grid,.hero-pc .hero-grid{grid-template-columns:minmax(0,1fr) minmax(300px,.9fr)}
.phone-stage{display:grid;gap:14px}
.phone-frame{padding:14px;background:linear-gradient(180deg,#11181d,#27313a)}
.phone-surface{border-radius:22px;overflow:hidden;background:#fff}
.phone-surface img{width:100%;height:auto}
.phone-tags,.apple-chip-row,.apk-checklist{display:flex;flex-wrap:wrap;gap:10px}
.apk-hero,.apple-hero{display:grid;gap:14px}
.apk-card,.desktop-window,.apple-device-box{padding:18px}
.apk-card img,.apple-stack img,.desktop-window img{border-radius:18px}
.apk-state{display:inline-flex;align-items:center;justify-content:center;min-height:36px;padding:0 14px;border-radius:999px;background:var(--accent-soft);color:var(--accent-2);font-weight:700;margin-top:12px}
.split-grid,.device-chooser-grid,.platform-grid,.app-showcase,.ios-flow,.desktop-chooser,.compare-grid{display:grid;gap:16px}
.split-grid,.app-showcase,.ios-flow,.desktop-chooser,.compare-grid{grid-template-columns:minmax(0,1fr) minmax(280px,.9fr);align-items:start}
.device-chooser-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
.platform-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
.device-card,.platform-card,.desktop-card{padding:18px;display:grid;gap:8px}
.device-card strong,.platform-card strong,.desktop-card strong{font-size:18px}
.device-card span,.platform-card span,.desktop-card span,.version-aside p,.mini-panel p,.path-panel p,.compat-card p,.apple-note p,.apk-entry-note p{color:var(--muted)}
.timeline-list{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.timeline-list.compact li{grid-template-columns:auto 1fr}
.timeline-list li{display:grid;grid-template-columns:auto 1fr;gap:12px;align-items:start;padding:14px 16px;border:1px solid var(--border);border-radius:16px;background:var(--surface)}
.timeline-index{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;background:var(--accent);color:#0b2f1d;font-weight:700}
.timeline-list h3{margin:0 0 6px;font-size:18px}
.timeline-list p{margin:0;color:var(--muted)}
.matrix-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.matrix-item,.table-row,.rail-item,.apple-device-box,.apk-entry-panel,.version-card,.version-aside,.path-panel,.compat-card,.mini-panel,.compare-table{padding:18px}
.panel-title{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:14px}
.tag{display:inline-flex;align-items:center;justify-content:center;min-height:30px;padding:0 12px;border-radius:999px;background:var(--accent-soft);color:var(--accent-2);font-size:13px;font-weight:700}
.table-row{display:grid;grid-template-columns:.5fr 1fr;padding:14px 16px;border-top:1px solid var(--border)}
.table-row.head{background:var(--accent-soft);font-weight:700;border-top:0}
.compare-table,.compat-table{border:1px solid var(--border);border-radius:18px;overflow:hidden;background:#fff}
.apple-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(300px,.9fr);gap:16px;align-items:start}
.apple-device-chooser{display:flex;flex-wrap:wrap;gap:10px;margin:12px 0}
.apple-device-chooser span{background:var(--accent-soft);color:var(--accent-2);padding:10px 14px;border-radius:999px;font-weight:700}
.ios-flow{grid-template-columns:minmax(0,1fr) minmax(280px,.9fr)}
.ios-rail{display:grid;gap:12px}
.rail-item{display:grid;grid-template-columns:auto 1fr;gap:12px;border:1px solid var(--border);border-radius:18px;background:#fff}
.rail-item span{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;background:var(--accent-soft);color:var(--accent-2);font-weight:700}
.rail-item strong{display:block;margin-bottom:4px}
.ios-shot{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.ios-shot img,.app-preview-card img{border-radius:18px}
.footer-cta{margin-top:12px}
.site-footer{margin-top:28px;padding:28px 0 36px;color:var(--footer-text);background:var(--footer-bg);border-top:1px solid rgba(255,255,255,.08)}
.footer-inner{display:grid;gap:18px;align-items:start;grid-template-columns:minmax(0,1.2fr) repeat(2, minmax(0,.9fr))}
.footer-brand p{margin:0;color:rgba(255,255,255,.78);max-width:38ch}
.footer-col h2{margin:0 0 12px;font-size:15px}
.footer-col a{display:block;margin-bottom:10px;color:rgba(255,255,255,.82)}
.faq-section{padding:28px 0 0}
.faq-list{display:grid;gap:14px}
.faq-list details{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:0 16px}
.faq-list summary{cursor:pointer;padding:16px 0;font-weight:700;list-style:none}
.faq-list p{margin:0 0 16px;color:var(--muted)}
.cta-band{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:16px;align-items:center;padding:22px;border-radius:22px;background:#fff;border:1px solid var(--border)}
.cta-band .cta-actions{justify-content:flex-end}
.section{padding:28px 0 8px}
.section-soft{background:linear-gradient(180deg,rgba(255,255,255,.32),transparent)}
.section-muted{background:var(--bg-2)}
.section-head{display:grid;gap:8px;margin-bottom:18px}
.section-head h2{margin:0;font-size:clamp(24px,2.8vw,36px);line-height:1.15;letter-spacing:-.03em}
.section-head p{margin:0;color:var(--muted)}
.eyebrow{margin:0 0 12px;color:var(--accent);letter-spacing:.08em;text-transform:uppercase;font-size:12px;font-weight:700}
@media (max-width: 1080px){
  .site-nav{display:none;position:absolute;left:16px;right:16px;top:76px;padding:14px;background:var(--header-bg);border:1px solid rgba(255,255,255,.12);border-radius:16px;flex-wrap:wrap;justify-content:flex-start;gap:14px;box-shadow:0 18px 40px rgba(0,0,0,.12)}
  .site-nav.is-open{display:flex}
  .menu-toggle{display:inline-flex;margin-left:auto}
  .header-cta{display:none}
  .hero-grid,.split-grid,.device-chooser-grid,.platform-grid,.app-showcase,.ios-flow,.desktop-chooser,.compare-grid,.apple-grid,.footer-inner,.cta-band{grid-template-columns:1fr}
  .hero-hub .hero-grid,.hero-app .hero-grid,.hero-android .hero-grid,.hero-ios .hero-grid,.hero-pc .hero-grid{grid-template-columns:1fr}
  .device-chooser-grid,.matrix-grid{grid-template-columns:1fr}
  .ios-shot{grid-template-columns:1fr}
  .hub-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .trust-strip{grid-template-columns:1fr}
}
@media (max-width: 760px){
  .container{width:min(100% - 24px,var(--container))}
  .hero{padding:42px 0 28px}
  .hero-copy h1{max-width:none;font-size:clamp(26px,8.8vw,36px);line-height:1.05;word-break:keep-all;overflow-wrap:normal;hyphens:none;text-wrap:balance}
  .hero-actions,.cta-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn,.cta-actions .btn{width:100%}
  .timeline-list li,.rail-item{grid-template-columns:1fr}
  .cta-band .cta-actions{justify-content:flex-start}
}
@media (max-width: 420px){
  .brand-logo,.footer-logo{width:118px}
  .hero-copy h1{font-size:clamp(26px,11vw,38px)}
}